Unable to merge dex

Question

Unable to merge dex

410.8k Views Asked by Parad0X At 17 September 2017 at 18:42

I have Android Studio Beta. I created a new project with compile my old modules but when I tried launching the app it did not launch with the message:

Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.

com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex

But I don't know how to solve this error. I googled this for hours but with no success.

My project gradle:

    // Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0-beta6'
        classpath "io.realm:realm-gradle-plugin:3.7.1"
        classpath 'com.google.gms:google-services:3.1.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        google()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

My app gradle:

    apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig {
        applicationId "parad0x.sk.onlyforyou"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
        }
    }
    compileOptions {
        targetCompatibility 1.7
        sourceCompatibility 1.7
    }
    packagingOptions {
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/NOTICE'
    }
    lintOptions {
        checkReleaseBuilds false
    }
    productFlavors {
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    //noinspection GradleCompatible
    compile 'com.android.support:appcompat-v7:26.0.0-alpha1'
    compile project(path: ':loginregisterview')


}

And my module gradle:

    apply plugin: 'com.android.library'
apply plugin: 'realm-android'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"

    defaultConfig {
        minSdkVersion 19
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.0.2'
    compile 'com.android.support:support-v4:26.1.0'
    compile 'com.github.bumptech.glide:glide:4.0.0'
    testCompile 'junit:junit:4.12'
    compile project(path: ':parser')

}

My second module:

     apply plugin: 'com.android.library'
apply plugin: 'realm-android'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }

    realm {
        syncEnabled = true
    }
    useLibrary 'org.apache.http.legacy'

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    productFlavors {
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile 'junit:junit:4.12'
    //  compile 'com.android.support:appcompat-v7:23.1.0'

    //   compile 'com.fasterxml.jackson.core:jackson-core:2.9.0'
 //   compile 'com.fasterxml.jackson.core:jackson-annotations:2.9.0'
 //   compile 'com.fasterxml.jackson.core:jackson-databind:2.9.0'
    compile 'com.google.code.gson:gson:2.6.2'
}

____________finding_________

When I did not import the second module (parser) the app did not crash on dex but when the module was not imported app did not work. :D :D

Original Q&A

There are 50 best solutions below

Suragch On 18 September 2017 at 08:31

Delete the .gradle directory.
Run your app again.

Notes

The .gradle directory is in your project's root folder. (You may have to show hidden files first.)
I have to do this every time I update a dependency module using Android 3.0. (More recent releases of Android Studio 3 seem to have resolved the problem.)

Michel Jung On 19 September 2017 at 07:12

Deleting .gradle as suggested by Suragch wasn't enough for me. Additionally, I had to perform a Build > Clean Project.

Note that, in order to see .gradle, you need to switch to the "Project" view in the navigator on the top left:

Chris - Jr On 23 September 2017 at 00:05

Unfortunately, neither Michel's nor Suragch's solutions worked for me.

What I eventually had to do was simply rollback my com.google.firebase:firebase-database to version 10.0.1, since 11.4.0 was causing a dependency inconsistency warning in my app gradle file.

Jon On 24 September 2017 at 09:10

I agree with Chris-Jr. If you are using Firebase to embed your AdMob ads (or even if you are not) the play-services-analytics includes the play-services-ads even though you don't add that as a dependency. Google have obviously made a mistake in their 11.4.0 roll-out as the analytics is including version 10.0.1 of ads, not 11.4.0 (the mouse over hint in the gradle shows this).

I manually added compile 'com.google.android.gms:play-services-ads:11.4.0' at the top which worked, but only after I disabled Instant Run: http://stackoverflow.com/a/35169716/530047

So its either regress to 10.0.1 or add the ads and disable Instant Run. That's what I found if it helps any.

aksh1618 On 02 October 2017 at 18:50

If this error appeared for you after including kotlin support, and none of the other solutions work, try changing the kotlin dependency of app module's build.gradle to:

implementation ("org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version") {
    exclude group: 'org.jetbrains', module: 'annotations'
}

This works for me on Android Studio 3.0 Beta 6. See this answer for further explanation.

itzhar On 05 October 2017 at 16:55

I tried all the above and none of them helps. finally, I find this work for me:

app/build.gradle:

android {
    defaultConfig {
       multiDexEnabled true
    }
}

Jens On 12 October 2017 at 08:01

If you are using

compile ("org.apache.oltu.oauth2:org.apache.oltu.oauth2.client:1.0.1")

you should change it to

compile ("org.apache.oltu.oauth2:org.apache.oltu.oauth2.client:1.0.1"){
    exclude group:'org.apache.oltu.oauth2' , module: 'org.apache.oltu.oauth2.common'
}

As the client lib already contains the common lib it creates a duplicate class entry which gives an error:

Unable to merge dex

pulkeet On 27 October 2017 at 07:55

With Android Studio 3.0 stable build Below steps worked for me:

Got to SdkManager-->Android Sdk --> Sdk Tools and Update Google play services to latest version to 46.
Clean project and rebuild project.

zyc zyc On 30 October 2017 at 07:36

add commands below:

android {
...

    dexOptions {

        jumboMode true
        javaMaxHeapSize "4g"

    }
}

milamber On 04 November 2017 at 08:47

For me it was updating the firebase messaging in app\build.gradle:

compile 'com.google.firebase:firebase-messaging:10.0.1'

to

compile 'com.google.firebase:firebase-messaging:11.4.2'

fredzzt On 15 November 2017 at 08:28

In my case, I import one 'android_support' lib twice ,so I delete one under 'libs' directory and rebuild.

King of Masses On 15 November 2017 at 09:46

In my case, Unfortunately, neither Michel's nor Suragch's solutions worked for me.

So I solved this issue by doing the following:

In gradle:3.0 the compile configuration is now deprecated and should be replaced by implementation or api. For more information you can read here You can read the official docs at Gradle Build Tool

The compile configuration still exists but should not be used as it will not offer the guarantees that the api and implementation configurations provide.

it's better to use implementation or api rather compile

just replace compile with implementation, debugCompile with debugImplementation, testCompile with testImplementation and androidtestcompile with androidTestImplementation

For example: Instead of this

compile 'com.android.support:appcompat-v7:26.0.2'
compile 'com.android.support:support-v4:26.1.0'
compile 'com.github.bumptech.glide:glide:4.0.0'

use like this

implementation 'com.android.support:appcompat-v7:26.0.2'
implementation 'com.android.support:support-v4:26.1.0'
implementation 'com.github.bumptech.glide:glide:4.0.0'

After that

Delete the .gradle folder inside your project ( Note that, in order to see .gradle, you need to switch to the "Project" view in the navigator on the top left )
Delete all the build folders and the gradle cache.
From the Build menu, press the Clean Project button.
After task completed, press the Rebuild Project button from the Build menu.

Hope it will helps !

Saveen On 18 November 2017 at 17:52

Hi I have same issue tried almost everything. So, finally i resolved after 6 hour long struggle by debugging everything line by line.

classpath 'com.google.gms:google-services:3.0.0'

Google-services 3.0 Doesn't support firebase with Studio 3.0 with playServiceVersion: 11.6.0 or less.

implementation "com.google.firebase:firebase-messaging:$rootProject.ext.playServiceVersion"
implementation "com.google.firebase:firebase-core:$rootProject.ext.playServiceVersion"
implementation "com.firebase:firebase-jobdispatcher-with-gcm-dep:$rootProject.ext.jobdispatcherVersion"

Solution :

I have change google services to

classpath 'com.google.gms:google-services:3.1.1'

And it support firebase services.

Hopefully somebody save his/her time.

vt. On 27 November 2017 at 23:53

One of possible root causes: duplicate transient dependencies that weren't properly handled by Android Studio import of multi-module projects. Check your list and remove them. For me, the fix was literally this:

--- a/project/module/build.gradle
+++ b/project/module/build.gradle
@@ -21,5 +21,4 @@ android {
 dependencies {
     implementation project(':upstream-dependency-project')
     implementation 'com.android.support:support-v4:18.0.0'
-    implementation files('libs/slf4j-android-1.6.1-RC1.jar')
 }

android developer On 29 November 2017 at 23:32

Just to add to the above solutions:

Make sure that you don't have duplicate dependencies pointing to different versions of them, in multiple places (or even in the same file).

Shashi On 01 December 2017 at 05:21

In my case issue was because of the room library:

compile 'android.arch.persistence.room:runtime:1.0.0-alpha1'

Changing it to:

compile 'android.arch.persistence.room:runtime:1.0.0'

worked.

ibrothergang On 02 December 2017 at 06:25

try like this, it works for me.

In app/build.gradle:

dependencies {
    ....

    compile project(':grow-notification')

    /** Firebase Start **/
    compile 'com.google.firebase:firebase-messaging:11.4.0'
    compile 'com.firebase:firebase-jobdispatcher:0.6.0'
    /** Firebase End **/
}

apply plugin: 'com.google.gms.google-services'

while in module grow-notification/build.gradle:

dependencies {
    ....

    /** Firebase Start **/
    provided 'com.google.firebase:firebase-messaging:11.4.0'
    provided 'com.firebase:firebase-jobdispatcher:0.6.0'
    /** Firebase End **/
}

Mithun Adhikari On 02 December 2017 at 14:35

In my case the problem was I implemented the same library twice in my build.gradle file. Removing the duplicate entry worked for me. And did not even needed to clean, rebuild the project.

global_warming On 06 December 2017 at 13:15

Simple solution worked for me:

Don't compile/implement two versions of same dependencies.
Don't use .jar file in libs folder of your project, if you are compiling it directly from gradle. Above point applies here too.

Then Clean and Rebuild project.

AudioBubble On 09 December 2017 at 13:55

I had the same problem. I solved it by performing a clean and then building the project from Android Studio 3.0 menu:

build -> clean project
build-> rebuild project

NoWar On 11 December 2017 at 02:27

In my case it was gson-2.8.1.jar which I have added to libs folder of the project. But the reference was already there by SDK. So it was not necesary to add gson-2.8.1.jar to libs folder.

When I took it out th gson-2.8.1.jar project compiles without this wiered error.

So try to revise libs folder and dependencies.

vivek yadav On 11 December 2017 at 04:41

For most of cases this works. It works for me . Good Luck if it works for you too.

Step 1:In build.gradle (Module:app) add this: defaultConfig{ multiDexEnabled true }

Step 2: do this: Build=> Clean Project

Step 3: do this: Build=> Rebuild Project

Alex E On 12 December 2017 at 03:39

./gradlew :app:assembleStubLiveDebug -debug -stacktrace

Or similar (get the task name (:app:assembleStubLiveDebug) from Android Studio).

Shubhamhackz On 17 December 2017 at 15:30

It is a common problem when you have added two version of the same library..either in the dependency or in the library....It my case and almost every time this fixes the issue..

Harmandeep Gill On 21 December 2017 at 00:04

Installing Google play services (latest version) + including

android {
    defaultConfig {
        multiDexEnabled true
        }
}

in build.gradle solved the issue for me, make sure to clean and rebuild project!

Virendra Varma On 26 December 2017 at 08:58

In my project I have more then two modules and sdks, I try all suggestion or answer listed above like

add multiDexEnabled true in defaultConfig
Clean and Rebuild project
replacing compile with implementing
update all dependencies

All these work temporarily but when I open project structure(cntrl + altr + shift+ s) i found, In my Project Property nothing will selected like- - compile SDK version, build sdk version - In flavors same

I update all these and perform clean and rebuild project and it works for me.

Philippe Grain On 28 December 2017 at 14:31

One of the possibilities is: the presence of the same library but with different versions in the dependencies.

I had this problem with the following lines in gradle file:

compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.google.code.gson:gson:2.8.2'

The gson library was in my libs directory but with a previous version. I deleted the gson-2.3.1.jar from the libs directory and everything is back to normal.

Keshav Gera On 11 January 2018 at 05:45

    android {
        defaultConfig {
            multiDexEnabled true
            }
    }

   compile 'com.google.android.gms:play-services:11.0.4'

   compile 'com.google.android.gms:play-services-location:11.0.4'

build clean and build Rebuild

Mir-Ismaili On 11 January 2018 at 21:22

Pay attention to Warnings!

Sometimes you only need to eliminate warnings and the error will be disappeared automatically. See below special case:

I had these two dependencies in my module-level build.gradle file:

implementation 'com.android.support:appcompat-v7:27.0.2'
implementation 'com.android.support:recyclerview-v7:27.0.2'

and Studio had warned (in addition to dex merging problem):

All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 27.0.2, 21.0.3. Examples include com.android.support:animated-vector-drawable:27.0.2 and com.android.support:support-v4:21.0.3

So I explicitly determined the version of com.android.support:support-v4 (see here for details) and both problems (the warning and the one related to dex merging) solved:

implementation 'com.android.support:support-v4:27.0.2'  // Added this line (according to above warning message)
implementation 'com.android.support:appcompat-v7:27.0.2'
implementation 'com.android.support:recyclerview-v7:27.0.2'

^{See below comments for other similar situations.}

Abhisek Mallick On 12 January 2018 at 09:31

Enable

defaultConfig { multiDexEnabled true }
If step 1 doesn't work then

Go to project structure and find out the external library which is using a different version. Double click on it and delete its jar file. Close the project and open again android studio will rebuild the project. The problem should be gone.

FarmerLi On 19 January 2018 at 06:20

I encountered the same problem and found the real reason for my case. Previously, I also tried all the previous answers again, but it did not solve the problem. I have two module in my wear app project, and the build.gradle as follows：

wear module's build.gradle:

implementation project(':common')
implementation files('libs/farmer-motion-1.0.jar')

common module's build.gradle:

implementation files('libs/farmer-motion-1.0.jar')

Before upgrade to gradle 3.x, 'implementation' are all 'compile'.

I run gradlew with --stacktrace option to get the stack trace, you can just click this on gradle console window when this problem arises. And found that dependency to the jar package repeated:

Caused by: com.android.dex.DexException: Multiple dex files define Lcom/farmer/motion/common/data/pojo/SportSummary$2;

Class SportSummary in the farmer-motion-1.0.jar package, after read the official migration guide, i changed my build.gradle to follows:

wear module's build.gradle:

implementation project(':common')
// delete dependency implementation files('libs/farmer-motion-1.0.jar')

common module的build.gradle:

api files('libs/farmer-motion-1.0.jar') // change implementation to api

Now wear module will has the dependency of farmer-motion-1.0.jar export by common module. If there has no dependency on jar package during runtime, 'implementation' dependency of jar package can also be change to 'compileOnly'.

Mansour On 23 January 2018 at 09:23

I find out the reason of this problem for my project. I was added one dependency twice in build.gradle. One time by adding dependency and one time again by adding jar dependency:

compile 'org.achartengine:achartengine:1.2.0'
...
implementation files('../achartengine-1.2.0.jar')

after remove the first line problem solved.

czane On 24 January 2018 at 22:19

Tried all of them before focusing on dependencies.

The below where killers:

//implementation 'org.apache.httpcomponents:httpcore:4.3.1'
//implementation 'org.apache.httpcomponents:httpmime:4.3.1'

Now is working as intended.

Md Shihab Uddin On 28 January 2018 at 06:50

After upgrading some dependency I found solutions. We should use latest play service version. In build.gradle[app] dependency.

compile 'com.android.support:multidex:1.0.2'
compile 'com.google.android.gms:play-services:11.8.0'
compile 'com.google.firebase:firebase-core:11.8.0'

In build.gradle[project], we should use latest Google plug-in.

classpath 'com.google.gms:google-services:3.1.1'

I am also sharing below code for better understanding.

    android {
    compileSdkVersion 26
    buildToolsVersion '26.0.2'
    defaultConfig {
        applicationId "com.***.user"
        minSdkVersion 17
        targetSdkVersion 26
        versionCode 26
        versionName "1.0.20"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
        vectorDrawables.useSupportLibrary = true

        aaptOptions {
            cruncherEnabled = false
        }

    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

tonisives On 29 January 2018 at 11:06

For me the issue was that 2 of the jars that I included in the project had the same classes in them.

For 1 of these jars I needed to exclude the classes:

jar {
    exclude('com/files/to/exclude/**')
}

Jmz On 31 January 2018 at 20:35

In my case the error was importing the dependency:

implementation 'com.firebaseui:firebase-ui:2.3.0'

and I was not using it, it started working when I deleted it cleaned project and recomplied. Of course I also did what the people above did which was:

Changing complie to implementation throughout the whole app.grade
Changing testcomplie to testimplementation throughout the whole app.grade
Make sure I have multidexenabled true
Update compileSdk to 26
Deleted .gradle file (found in project), clean project and recompile

and finally...

Deleted implementation 'com.firebaseui:firebase-ui:2.3.0' (Since I was not using it in my code)

Jacob Lewis On 14 February 2018 at 22:45

There might be a duplicated dependency (possibly nested in another dependency). Use "gradlew app:dependencies" in the command-line to verify all of your dependencies.

After removing duplicates, the problem was solved for me.

J Wang On 16 February 2018 at 03:45

In case the top answers haven't worked for you, your issue may be that you have multiple dependencies that depend on the same library.

Here are some debugging tips. In this sample code, com.google.code.findbugs:jsr305:3.0.0 is the offending library.

Always clean and rebuild every time you modify to check your solution!

Build with the --stacktrace flag on for more detail. It will complain about a class, Google that class to find the library. Here's how you can set up Android studio to always run gradle with the --stacktrace flag.
Take a glance at the Gradle Console in Android Studio View > Tool Windows > Gradle Console after a build
Check for repeated dependences by running ./gradlew -q app:dependencies. You can re-run this each time you modify the your build.gradle.

In build.gradle,

android {
        ...
        configurations.all {
            resolutionStrategy {
                // Force a particular version of the library 
                // across all dependencies that have that dependency
                force 'com.google.code.findbugs:jsr305:3.0.0'
            }
        }
}

In build.gradle,

dependencies {
    ...
    implementation('com.google.auth:google-auth-library-oauth2-http:0.6.0') {
        // Exclude the library for this particular import
        exclude group: 'com.google.code.findbugs'
    }
}

In build.gradle,

android {
    ...
    configurations.all {
        resolutionStrategy {
            // Completely exclude the library. Works for transitive
            // dependencies.
            exclude group: 'com.google.code.findbugs'
        }
    }
}

If some of your dependencies are in jar files, open up the jar files and see if there are any conflicting class names. If they are, you will probably have to re-build the jars with new class names or look into shading.

Some more background reading:

Pablo Cegarra On 20 February 2018 at 10:11

I spend more than 3 hours reading and testing all the responses. Finally the problem was the library "joda time",

Reading this answer I found the problem, run the gradle console with full stack trace and read the error detail.

Ashwin H On 01 March 2018 at 05:55

    apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.xyz.name"
        minSdkVersion 14
        targetSdkVersion 27
        versionCode 7
        versionName "1.6"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'com.android.volley:volley:1.0.0'
    implementation 'com.wang.avi:library:2.1.3'
    implementation 'com.android.support:design:27.1.0'
    implementation 'com.android.support:support-v4:27.1.0'
    implementation 'de.hdodenhof:circleimageview:2.1.0'
    implementation 'com.github.bumptech.glide:glide:3.7.0'
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.6.0'
    implementation 'com.loopj.android:android-async-http:1.4.9'
    implementation 'com.google.firebase:firebase-messaging:11.8.0'
    implementation 'com.felipecsl.asymmetricgridview:library:2.0.1'
    implementation 'com.android.support:recyclerview-v7:27.1.0'
    implementation 'com.github.darsh2:MultipleImageSelect:3474549'
    implementation 'it.sephiroth.android.library.horizontallistview:hlistview:1.2.2'
    implementation 'com.android.support:multidex:1.0.1'
}

apply plugin: 'com.google.gms.google-services'

Note: update your all support library to 27.1.0 like above and remove duplicates

akhil as On 03 March 2018 at 13:12

I also had the problem.

I was able to solve by changing compileSdkVersion and targetSdkVersion to latest version.

Nikul Vadher On 07 March 2018 at 11:53

check dependencies version if they are not same then make it same it will solve your problem

compile 'com.android.support:appcompat-v7:27.0.2'
compile 'com.android.support:recyclerview-v7:27.0.2'
compile 'com.android.support:cardview-v7:27.0.2'

Taha Ali On 12 March 2018 at 19:11

[ UNABLE TO MERGE DEX SOLVED ] After hours of stack overflowing I resolved the " UNABLE TO MERGE DEX ERROR "

Update all the com.android.support lines in your gradle to v27.1.0

Cause - Android has updated it support libraries to v27.1.0, so you have to change all the android support lines in your gradle file to 27.1.0 from 26.1.0

Make sure that the repositories section includes a maven section with the "https://maven.google.com" endpoint. For example:

allprojects { repositories { jcenter() maven { url "https://maven.google.com" } } }

Cause :- Android cannot update the support libraries in the SDK manager and now it uses maven.google.com to update , so you have to include this to use 27.1.0 support libraries

After Change Version: 1. Clean Project 2. Rebuild Project

Eben Watts On 18 March 2018 at 11:51

android {
    defaultConfig {
        ...
        minSdkVersion 15 
        targetSdkVersion 26
        multiDexEnabled true
    }
    ...
}

dependencies {
  compile 'com.android.support:multidex:1.0.1'
}

kokoko On 21 March 2018 at 09:07

I tried every other solution, but no one worked for me. At the end, i solved it by using same dependency version by editing build.gradle. I think this problem occurres when adding a library into gradle which uses different dependency version of support or google libraries.

Add following code to your build gradle file. Then clean and rebuild project.

ps: that was old solution for me so you should use updated version of following libraries.

configurations.all {
resolutionStrategy.eachDependency { DependencyResolveDetails details ->
    def requested = details.requested
    if (requested.group == 'com.android.support') {
        if (!requested.name.startsWith("multidex")) {
            details.useVersion '26.1.0'
        }
    } else if (requested.group == "com.google.android.gms") {
        details.useVersion '11.8.0'
        } else if (requested.group == "com.google.firebase") {
            details.useVersion '11.8.0'
          }
      }
}

Ifta On 22 March 2018 at 08:58

For our project, we accidentally added same jar two times with different name. Removing one of them solved the issue.

Oleg Korban On 25 March 2018 at 09:19

Check if you have debugCompile and releaseCompile in build.gradle. Change it to debugImplementation and releaseImplementation. This was how I have solved it, gradle should pass through this successfully marked instructions as deprecated, but suddenly it stucked exactly on this two.

asish On 03 April 2018 at 17:22

Make sure all same source library have same version number. In my case I was using different google api versions. I was using 11.6.0 for all google libraries but 10.4.0 for google place api. After updating google place api to 11.6.0, problem fixed.

Please note that my multidex is also enabled for the project.

Rodrigo Salomao On 04 May 2018 at 18:01

Change you buildToolsVersion to some other version and sync, change it back and sync again. It will work again.

**Zohidjon Akbarov** · Accepted Answer · 2017-09-23T21:52:15.177000

Zohidjon Akbarov On 23 September 2017 at 21:52 BEST ANSWER

I had the same problem when I update from com.google.android.gms:play-services:11.2.2 to com.google.android.gms:play-services:11.4.0. This solved it for me:

clean
rebuild

Unable to merge dex

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